I m working in a WPF MVVM Project and I am using one Wpf Window. In this window i have a space for one usercontrol and two buttons next and back. When i click the next button I want usercontrol1 to be replaced with usercontrol2. etc.
Sounds like you're trying to create a wizard-style user interface.
This Code Project article may help. And right here is a good place for getting started too.
You can have Wizard user control which is binded to WizardModel, In the Wizard control put ContentPresenter control, and bind it to WizardModel's WizardPage property. And by changing that WizardPage property, you can change wizard page from model. 
Hope this helps, here used the same mechanism for changing views
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With